373834743661 has 4 divisors (see below), whose sum is σ = 390088428192. Its totient is φ = 357581059132.

The previous prime is 373834743647. The next prime is 373834743671. The reversal of 373834743661 is 166347438373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 373834743661 - 2⁷ = 373834743533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373834743671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8126842231 + ... + 8126842276.

It is an arithmetic number, because the mean of its divisors is an integer number (97522107048).

Almost surely, 2^373834743661 is an apocalyptic number.

It is an amenable number.

373834743661 is a deficient number, since it is larger than the sum of its proper divisors (16253684531).

373834743661 is a wasteful number, since it uses less digits than its factorization.

373834743661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16253684530.

The product of its digits is 18289152, while the sum is 55.

The spelling of 373834743661 in words is "three hundred seventy-three billion, eight hundred thirty-four million, seven hundred forty-three thousand, six hundred sixty-one".